AMD has announced the ATI Radeon HD 4600 series mainstream graphics offerings that deliver exceptional gaming and HD multimedia performance while consuming less power than a standard light bulb, according to the company.

Comprising the ATI Radeon HD 4670 and the ATI Radeon HD 4650 graphics cards, the ATI Radeon HD 4600 series leverages the technology found in the ATI Radeon HD 4800 series, including support for DirectX 10.1, HD multimedia capabilities and excellent performance-per-watt, all delivered at affordable prices for the mainstream graphics segment.

Both the ATI Radeon HD 4670 and ATI Radeon HD 4650 deliver substantial gaming horsepower with minimal power draw – the ATI Radeon HD 4670 operating at under 60W and the ATI Radeon HD 4650 operating under 50W under full load – eliminating the need for additional power connectors and making installation a cinch, the company highlighted.

The ATI Radeon HD 4670 is immediately available with a frame buffer of 512MB GDDR3 memory and priced at US$79, while a 1GB DDR3-based variant is scheduled to ship later this month. The ATI Radeon HD 4650 features a frame buffer of 512MB GDDR2 memory and is expected to be available later in the month at a price from US$69.